3．Nowadays，a brand new way of shopping is attracting increasing customers：online group buying，also known as collective buying，which offers products and services at reduced prices on the condition that a minimum number of buyers would make the purchase．Origins of group buying can be traced to China where group buying or team buying was executed to get discount prices when a large group of people were willing to buy the same item
China group buying transaction volume hit US$ 1.74 billion （RMB 11 billion） in 2011，up 550% from the same period in 2010，according to a report by Tuan800．com，the Beijing-based daily deal sites aggregator．The report also shows that 2011 was the year that the Chinese Group-buying market got more and more concentrated with more and more Chinese，most of whom are white collars，teenagers and college students enjoying the benefits of group buying．And，among the most favorable buying categories are restaurant，movie and hotel booking for travelling．
Through group buying，on one hand，customers get a lower price than normal．On the other hand，businessmen also cut down expenses on marketing．That is the reason why group buying websites spring up like mushrooms in recent months．What is the most attractive in group buying must be the unbelievable discounts．Facing the discounts，customers always couldn't resist the impulse to buy the products，even though they do not need them．
[写作内容]
1． 以约30个词概括短文的要点．
2． 以约120个词写一篇关于"团购"的短文，至少包括以下的内容要点．
（1）你对团购的看法并陈述理由．
（2）谈谈你自己或他人的一次团购经历．
（3）请你给团购者一些有用的建议．
[写作要求]
1．作文中可以使用亲身经历或虚构的故事，或其他论述方法，也可以参照阅读材料的内容，但不得直接引用原文中的句子．
2．作文中不能出现真实姓名和学校名称．
[评分标准]
概括准确，语言规范，内容合适，语句连贯．
